Error

I use Installshield 2023. I had simply replaced the set of .dll's that our Installshield project is configured to read from that were more recent and that I wanted included in the install. I then clicked Build in InstallShield as I always have. No other settings or project configurations were changed.

Out of nowhere, I am encountering the error -6421: An error occurred determining if the setup [Our MSI] is a major upgrade. I first restarted the PC, and that did not fix the issue. I then deleted the whole Temp directory, and that also did not fix the issue. There is no further documentation available that I can see, so I am hoping that someone can provide a resolution or additional troubleshooting tips for this.

Thanks.

I assume that is because we changed hosting providers for our servers and now the Installshield licensing system does not recognize the licensed server anymore. How can I get my license for Installshield restored and working on the 'new' machine.

Thanks

I’m trying to install Altair FEKO 2022.1 on Windows 11, but the installer consistently fails at launch with a “Windows error 2 occurred while loading the Java VM” / InstallAnywhere launcher failure.

System details

• OS: Windows 11 (Build 26200)
• Java: Bundled OpenJDK 11.0.15 (Corretto 11)
• FEKO installer size: ~2.87 GB (fully downloaded)
• Running from local extracted folder (not network drive)
• Virtualization-based Security (VBS): Enabled
• App Control for Business: Enforced

What I have tested so far

The installer extracts successfully and contains all expected components:

• InstallerData
• folder is present and complete (~2.87 GB total package)
• resource\jre\bin\java.exe
• exists and runs correctly
• InstallAnywhere launcher classes are present (com/zerog/lax etc.)

When I create a web MSI for IIS (Basic MSI), the folder does not install into the wwwroot directory.

In the General Information section, the INSTALLDIR variable is correctly set to "[IISROOTFOLDER]MyWebSite".

In the Internet Information Services view, under Web Sites, the "Content Source Path [Local or UNC]" property contains the variable "[INSTALLDIR]".

And in System Search, IISROOTFOLDER is correctly retrieved from the registry key "HKLM\SOFTWARE\Microsoft\InetStp\PathWWWRoot". The MinorVersion and MajorVersion variables are also being retrieved.

Am I missing something?

I am using InstallShield 2025 R1 Premier Edition.

I also tried using IISScan.exe to retrieve information about a website, but it returns the error: "The website 'MyWebSite' was not found."